Traveling crane.



No. 765,405. PATENTED JULY 19, 1904. o. H. TURVER, JR.

TRAVELING CRANE.

APPLICATION FILED MAY 18, 1904.

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ATTORNEY.

No. 765,405. PATBNTED JULY 19, 1904.

G. H. TURVER, JR.

TRAVBLIN G CRANE.

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. v HI I v ATTORNEYS- UNITED STATES Patented July 19, 1904.

PATENT OFFICE.

TRAVELING CRANE.

SPECIFICATION forming part of Letters Patent No. 765,405, dated July 19,1904.

. Applicati n fil d May 18, 1904:. Serial No. 208,599. (No model.)

To (ZZZ whom/ 7'1; may concern:

Be it known that 1, CHARLES H. TURVER, Jr., a citizen of the UnitedStates, residing at Holmesburg, county of Philadelphia, and State ofPennsylvania,have invented a new and useful Improvement in TravelingCranes, of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, which form a part ofthis specification.

My invention relates to that class of cranes in which the crane iscarried by a body or platform rotatably supported upon a truck orwheel-frame traveling upon rails or tracks.

The object of my invention is to provide means to regulate the speed oftravel or stop the same by braking the'wheels of the truck or frame.Heretofore the speed of travel has been obtained by braking thedrivingdrum upon the platform or body. In this class of machines thedriving power is transmitted from the car-bod y to the truck orwheelframe through a vertical shaft placed in the center of rotation ofthe body in the truck or car-frame.

In carrying out my invention I make an orifice centrally through thisshaft, and through this orifice I carry a pipe in connection withdriving-pressure supply. The lower end of the pipe I connect withacylinder carried by the car truck or frame, in which cylinder is apiston connected to the brake-beams carrying the brake-shoes operatingagainst the truck or frame wheels. Upon the pipe and on the body orplatform I provide controlling means for admitting the pressure to andexhausting the same from the cylinder.

I will first describe the embodiment of my invention disclosed in theaccompanying drawings and then point out the invention in the claims.

In the drawings, Figure 1 is a longitudinal elevation of a travelingcrane embodying my invention. Fig. 2 is a plan view of the truck orwheel-frame and wheels. Fig. 3 is an enlarged view showing thepower-transmitting shaft and gears and pressure-pipe.

A is the crane-platform, carrying the boiler B, the engine C, the drum Dfor swinging the crane, the driving-drum E, the lifting-drum F, thedriving-drum-controlling lever c, the

on the shaft its, having at its ends the gears h and 7215, the gear itmeshing with the gear h on the axle 7L carrying the wheels I I, and thegear If meshes with the gear [L8 on the axle [L9, carrying the wheels II The shaft H forms the center of rotation of the platform A upon thetruck or wheel-frame J. This shaft H has the central vertical orificethrough it. Through this orifice extends the pipe K. From the lower endof this pipe K extends a branch pipe in to the cylinder L, carried bythe wheel-frame or truck.

M is a pipe connecting the boiler B and engine O. From the pipe M abranch pipe 76 extends to the pipe K.

N is a valve having the operating-handle a, controlling the passage ofsteam to pipe K. From the valve N also extends a pipe k to the air. Thevalve N can be turned to connect pipe K with the steam-pipe M or withpipe In the cylinder L is a piston having the piston-rod Z, connected bylink Z to lever Z From this lever Z extend the rods 0 and 0. The rod 0is connected to the brake-beam O, to which are pivotally connected thebrakeshoes P. The rod 0 is connected to the brakebeam 0, to which arepivotally connected the brake-shoes P.

When the handle a is operated to admit steam to the pipe K, and thus tocylinder L, the piston is operated, causing the piston-rod Z, throughthe mechanism described, to operate the brake-beams and the brake-shoes.By

regulating the amount of steam admitted the and passing the steam-pipe Ktherethrough the platform A may be rotated to any position withoutaffecting the braking of the wheels.

Having now fully described my invention, what I claim, and desire toprotect by Letters Patent, is-

1. In a traveling crane, provided with a platform carrying the crane anddriving power, and a wheel-frame or truck upon which said platform isrotatably mounted, in combination, a vertical power-shaft, connectingthe platform and wheel-frame, in the axis of rotation of the platform,said shaft having a central vertical orifice, a pipe, adapted to conveypressure, extending therethrough, a cylinder carried by the wheel-frame,a piston in said cylinder, a wheel-brake and connection between saidpiston and said brake, a source of pressure-supply carried by theplatform and connection between said supply and said pipe.

2. In a traveling crane of the character described, in combination withthe power-transmission shaft in the axis of rotation of the platform,provided with a central orifice, a pipe extending therethrough, abrake-cylinder carried by the wheel-frame and connection between thelower portion of said pipe and cylinder and between the upper portion ofpipe and source of pressure-supply.

3. In a traveling crane of the character described, in combination withthe power-transmission shaft in the axis of rotation of the platform,provided with a central orifice, a pipe extending therethrough, abrake-cylinder, carried by the wheelframe, provided with a piston,connection between the lower portion of said pipe and cylinder andbetween tion between said brake shoe or shoes and the piston.

4:. In a traveling crane of the character described, in combination withthe power-transmission shaft in the axis of rotation of the platform,provided with a central orifice, a pipe extending therethrough, abrake-cylinder carried by the wheel-frame, provided with a piston,connection between the lower portion of said pipe and cylinder andbetween the upper portion of pipe and source of pressure-supply, and aconnection between said pipe and the atmosphere, a valve on the platformcontrolling the connection between said pipe and the pressure-supply andatmosphere.

5. In a traveling crane of the character described, in combination withthe power-'trans mission shaft in the axis of rotation of the platform,provided with a central orifice, a pipe extending therethrough, abrake-cylinder carried by the wheel-frame, provided with a piston,connection between the lower portion of said pipe and cylinder andbetween the upper portion of pipe and source of pressure-supply, brakeshoe or shoes, and connection between said brake shoe or shoes and thepiston, and communication between said pipe and the atmosphere, a valveon the platform controlling the connection between said pipe and thepressure-supply and atmosphere.

In testimony of which invention I have hereunto set my hand, atHolmesburg, Philadelphia, on this 25th day of April, 1904.

CHARLES H. TURVER, JR.

Witnesses:

MILTON P. CoRBIN, BENJ. W. SNYDER.

